The reality star was doing what she does best this weekend — working and promoting — causing her to miss pal Nicole’s wedding!

For anyone who thinks Kim Kardashian was a no show at Nicole Richie‘s wedding due to any sort of bad blood, think again — she was working! The seemingly always on the go Kim was on hand at the Dec. 10 Jingle Ball in NYC and then the Dec. 11 Jingle Ball in Miami serving as a special guest host, meaning she could not get back to LA for Nicole’s wedding.

Kim did get some down time and spent it with rumored new beau Kris Humphries in NYC Dec. 10. Then, she met up with Serena Williams to celebrate the anniversary of Loren Ridinger and her husband JR in Miami Dec. 11.

Dec. 12 it was back to LA for the reality star where she could get all the wedding scoop from sister Khloe, who was in attendance.